초록 ▼

A pump assembly for delivering liquids or gases include a pump and an electromotor for driving the pump, the speed and/or torque of the electromotor being made variable by a static frequency converter. The frequency converter can be miniaturized by highly-integrated circuits and other provisions for

A pump assembly for delivering liquids or gases include a pump and an electromotor for driving the pump, the speed and/or torque of the electromotor being made variable by a static frequency converter. The frequency converter can be miniaturized by highly-integrated circuits and other provisions for a sufficient emission of dissipation heat. The frequency converter is arranged inside or on the pump assembly, forming a structural unit with pump assembly, and the dissipation heat of the frequency converter is emitted by the fluid delivered or to be delivered by the pump assembly, the fluid acting as dissipator.

대표청구항 ▼

A pump assembly for delivering fluid, comprising a pump having a primary flow channel and a electromotor driving the pump, a parameter of said electromotor being variable by means of a static frequency converter, wherein the frequency converter is miniaturized using highly integrated circuits and is

A pump assembly for delivering fluid, comprising a pump having a primary flow channel and a electromotor driving the pump, a parameter of said electromotor being variable by means of a static frequency converter, wherein the frequency converter is miniaturized using highly integrated circuits and is coupled to the pump assembly, and whereby the dissipation heat of the frequency converter is emitted by fluid which has entered the pump assembly, said fluid acting as a dissipator, wherein the frequency converter is arranged in a bypass flow channel of the pump, said bypass flow channel having an inlet which communicates with said primary flow channel at a first location and an outlet which communicates with said primary flow channel at a second location.